CN209933671U

CN209933671U - Dropping funnel and infusion apparatus thereof

Info

Publication number: CN209933671U
Application number: CN201920584486.6U
Authority: CN
Inventors: 李文云
Original assignee: Taizhou Anrong Medical Devices Co Ltd
Current assignee: Taizhou Anrong Medical Devices Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-01-14
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a drip chamber and transfusion system thereof belongs to medical instrument technical field, including upper cover and lower cover, the upper cover cup joints the installation and covers under and form the cavity with the lower cover, the top of upper cover is equipped with the feed liquor pipe with the cavity intercommunication, be equipped with the last connector as an organic whole structure with the upper cover around the feed liquor pipe, the exhaust hole has been seted up to the lateral wall of upper cover, be equipped with filtration membrane and gasket in the exhaust hole, the lower extreme of lower cover is equipped with the fluid-discharge tube with the cavity intercommunication, be equipped with the lower connector as an organic whole structure with the lower cover around the fluid-discharge tube, the lower extreme of feed liquor pipe and the upper end fixedly connected with cylinder groove of fluid-discharge tube, the opening has been seted up to the lateral wall in cylinder groove, still weld the one deck in the lower cover and end the liquid film, reached the interception bubble, automatic exhaust, separation plastic granules, invariabl.

Description

Dropping funnel and infusion apparatus thereof

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a dropping funnel and an infusion apparatus thereof.

Background

The existing infusion apparatus has single function, and the dropping funnel of the infusion apparatus has the main function of observing the filling condition of liquid drops and liquid, and because air is easily entrained in an infusion pipeline, when the infusion apparatus is used clinically, medical personnel need to completely discharge air bubbles in an infusion catheter and then infuse. The method generally adopts the steps that after a bottle stopper puncture outfit is punctured into a transfusion bottle stopper, a flow regulator is closed, a dropping funnel is squeezed, so that liquid medicine enters the dropping funnel, the flow regulator is opened after about half of the liquid is filled into the dropping funnel, the flow regulator is quickly closed after the liquid drops out of a male spiral connector, the flow is regulated after a patient is connected, even if the flow is regulated, bubbles are adsorbed on the pipe wall, medical workers need to pinch the bubbles with fingers, the flow is repeatedly regulated during bottle changing, the action of squeezing the dropping bottle is required, and after transfusion is finished, blood return can be caused if the liquid medicine drops are empty. The operation method is complicated, and brings great inconvenience to medical staff, so that the working strength of the medical staff is increased, and serious safety accidents that air enters the human body can be caused seriously.

On the other hand, when the medical staff punctures the infusion bottle or the infusion bag, the tiny plastic particles (less than 15 um) generated by the puncture may fall into the infusion bag and are easily infused into the human body along with the liquid medicine, which causes potential harm to the human body and increases the risk of the harm.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. In view of this, the utility model aims at providing a drip chamber and transfusion system thereof has the advantage of self-bleeding, interception bubble, invariable liquid level, separation plastic granules and automatic end liquid.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a dropping funnel, includes upper cover and lower cover, the upper cover cup joints the installation and covers under and forms the cavity with the lower cover, the top of upper cover is equipped with the feed liquor pipe with the cavity intercommunication, be equipped with the last connector of structure as an organic whole with the upper cover around the feed liquor pipe, the exhaust hole has been seted up to the lateral wall of upper cover, be equipped with filtration membrane and gasket in the exhaust hole, the lower extreme of lower cover is equipped with the fluid-discharge tube with the cavity intercommunication, be equipped with the lower connector of structure as an organic whole with the lower cover around the fluid-discharge tube, the lower extreme of feed liquor pipe and the upper end fixedly connected with cylinder groove of fluid-discharge tube, the opening has been seted up to the lateral wall in cylinder groove, still weld one deck liquid stopping film in the lower cover.

Through the arrangement, after entering from the liquid inlet pipe, the liquid medicine flows into the cylindrical tank fixed below the liquid inlet pipe, because only the side wall of the cylindrical tank is provided with the opening, the liquid medicine flows out from the opening arranged on the side wall of the cylindrical tank, because the flow direction of the liquid medicine is changed by the opening, the liquid medicine can form a watering phenomenon in the process of rapidly flowing through, then the liquid medicine can flow into the cavity along the inner side walls of the upper cover and the lower cover, on one hand, the phenomenon that bubbles are easily generated due to the dropping of the liquid medicine is avoided, on the other hand, air and plastic particles mixed in the liquid medicine are also intercepted preliminarily by the opening, then more and more liquid medicine flows into the cavity, the liquid level of the liquid medicine gradually rises in the cavity, the air in the cavity is discharged from the exhaust hole on the side wall of the upper cover, the air filtering membrane and the gasket are arranged in the exhaust hole, one side of, when the liquid medicine is full to a liquid level higher than the exhaust hole, the residual air in the cavity cannot be discharged after the exhaust hole is blocked by the liquid medicine, the air pressure in the cavity is gradually increased along with the inflow of the liquid medicine, the flow rate of the liquid medicine is gradually reduced, the liquid medicine does not flow in any more until the air pressure of the residual air in the cavity reaches a certain degree, the liquid level of the liquid medicine is constant, the gasket pushes the air filtering membrane to the edge of the inner wall, the air filtering membrane can be prevented from being pushed out, the bacteria can be blocked, and siphoning or liquid diaphragms cannot be formed; then, the liquid medicine is discharged from the liquid discharge pipe to the cavity, the liquid medicine passes through the liquid stopping film and then passes through an opening formed in the cylindrical groove above the liquid discharge pipe before reaching the liquid discharge pipe, and the liquid stopping film and the opening of the cylindrical groove intercept air and plastic particles in the liquid medicine again; along with the liquid medicine is continuously discharged from the liquid discharge pipe, the liquid medicine also continuously enters from the liquid inlet pipe, the air pressure in the cavity is kept, once the liquid medicine is completely transported, the liquid stopping film is wetted to form a water film, and the gas cannot pass through the liquid stopping film, so that the possibility of preventing the gas from entering the human body is realized.

As a specific aspect of the present invention, it may be preferable that: the length of going up the connector is greater than the length of feed liquor pipe, the length of connector is greater than the length of fluid-discharge tube down.

Through the arrangement, the upper connector can protect the liquid inlet pipe, and the lower connector can protect the liquid discharge pipe.

As a specific aspect of the present invention, it may be preferable that: the inner side edges of the ports of the upper connector and the lower connector are designed to be chamfers.

Through the arrangement, the hose of the infusion apparatus can be conveniently inserted into the upper connector and the lower connector.

As a specific aspect of the present invention, it may be preferable that: the wall thickness of the liquid inlet pipe is gradually reduced from bottom to top, and the wall thickness of the liquid discharge pipe is gradually reduced from top to bottom.

Through the arrangement, the liquid inlet pipe and the liquid discharge pipe are conveniently inserted into the hose of the infusion apparatus.

As a specific aspect of the present invention, it may be preferable that: the head of the exhaust hole is provided with an antibacterial cover cap.

Through the arrangement, when the dropping funnel is not used, the antibacterial cap can effectively prevent bacteria from entering the cavity from the exhaust hole.

As a specific aspect of the present invention, it may be preferable that: the air filtering membrane is made of PTFE as a raw material.

Through the arrangement, the material has the characteristics of acid and alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, is prepared by the material through special processes such as premixing, extruding, calendaring and biaxial stretching, and has the characteristics of smooth surface, chemical substance resistance, air permeability, water impermeability, large air permeability, flame retardance, high temperature resistance, strong acid and alkali resistance, no toxicity and the like.

As a specific aspect of the present invention, it may be preferable that: the openings are uniformly distributed on the side wall of the cylindrical groove.

Through the arrangement, the liquid medicine can be uniformly distributed on the openings of the side walls of the cylindrical grooves to flow in and out.

The utility model also provides an infusion apparatus, which is characterized in that the dropping funnel comprises any one of the above components.

The utility model discloses technical effect mainly embodies in following aspect: the cylindrical grooves are fixedly connected to the lower end of the liquid inlet pipe and the upper end of the liquid discharge pipe, so that bubbles and plastic particles in the liquid medicine can be intercepted for many times; the exhaust hole has been seted up to the lateral wall of upper cover, be equipped with filtration membrane and gasket in the exhaust hole, realized self-bleeding and realized invariable to the liquid level of liquid medicine, it has the one deck to end the liquid film to weld in the lower cover, in case the liquid medicine is defeated to be accomplished, because end the moist water film that forms of liquid film, gaseous unable liquid film that passes through has realized preventing gaseous entering human possibility, because gaseous unable passing through, under the effect of atmospheric pressure, liquid then no longer continues down, has accomplished the effect of automatic liquid stopping.

Drawings

Fig. 1 is a front view of the drip chamber of the present invention;

fig. 2 is a sectional view of the drip chamber of the present invention;

FIG. 3 is an enlarged view of portion B of FIG. 2;

fig. 4 is a schematic structural view of the drip chamber and the infusion apparatus thereof.

Reference numerals: 1. an upper cover; 2. a lower cover; 3. a cavity; 11. a liquid inlet pipe; 12. an upper connector; 13. an exhaust hole; 131. an air filtration membrane; 132. a gasket; 21. a liquid discharge pipe; 22. a lower connector; 4. a cylindrical groove; 41. an opening; 5. a liquid stopping film; 6. an antibacterial cap; 7. an infusion set.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention so that the technical solution of the present invention can be more easily understood and grasped, and should not be construed as limiting the present invention.

Examples

The utility model provides a dropping funnel and transfusion system thereof, refer to fig. 1, fig. 2 and fig. 3 show, the utility model discloses a dropping funnel, including upper cover 1 and upper cover 2, upper cover 1 cup joints and installs on upper cover 2 and with upper cover 2 vacuole formation 3, the top of upper cover 1 is equipped with the feed liquor pipe 11 with cavity 3 intercommunication, be equipped with around feed liquor pipe 11 with upper cover 1 upper connector 12 of structure as an organic whole, exhaust hole 13 has been seted up to the lateral wall of upper cover 1, be equipped with air filtration membrane 131 and gasket 132 in the exhaust hole 13, the lower extreme of upper cover 2 is equipped with fluid-discharge tube 21 with cavity 3 intercommunication, be equipped with around fluid-discharge tube 21 with upper cover 2 lower connector 22 of structure as an organic whole, the lower extreme of feed liquor pipe 11 and the upper end fixedly connected with cylinder groove 4 of fluid-discharge tube 21, opening 41 has been seted up to the lateral wall of cylinder groove 4, one deck liquid stopping film 5 has still.

After entering from the liquid inlet pipe 11, the liquid medicine flows into the cylindrical tank 4 fixed below the liquid inlet pipe 11, because only the side wall of the cylindrical tank 4 is provided with an opening, the liquid medicine flows out from the opening 41 arranged on the side wall of the cylindrical tank 4, because the flow direction of the liquid medicine is changed by the opening 41, the liquid medicine can form a watering phenomenon in the process of rapidly flowing through, then the liquid medicine can flow into the cavity 3 along the inner side walls of the upper cover 1 and the lower cover 2, on one hand, bubbles are prevented from being easily generated due to dripping of the liquid medicine, on the other hand, air and plastic particles mixed in the liquid medicine are preliminarily intercepted by the opening 41, then more and more liquid medicine flows into the cavity 3, the liquid level of the liquid medicine gradually rises in the cavity 3, the air in the cavity 3 is discharged from the air outlet hole 13 on the side wall of the upper cover 1, the air filtering film 131 and the gasket 132 are arranged in the air outlet hole, when the liquid medicine is full to a liquid level higher than the air vent hole 13, the residual air in the cavity 3 cannot be discharged after the air vent hole 13 is blocked by the liquid medicine, the air pressure in the cavity 3 gradually increases along with the inflow of the liquid medicine, the flow rate of the liquid medicine gradually decreases, the liquid medicine does not flow in any more until the air pressure of the residual air in the cavity 3 reaches a certain degree, the liquid level of the liquid medicine is constant, the gasket 132 pushes the air filtering membrane 131 to the edge of the inner wall, the air filtering membrane 131 can be prevented from being pushed out, the bacteria can be blocked, and siphoning or liquid diaphragms cannot be formed; then, the liquid medicine is discharged out of the cavity 3 from the liquid discharge pipe 21, the liquid medicine passes through an opening formed in the cylindrical groove 4 above the liquid discharge pipe 21 before passing through the liquid stopping film 5 and then entering the liquid discharge pipe 21, and at the moment, the liquid stopping film 5 and the opening 41 of the cylindrical groove 4 intercept air and plastic particles in the liquid medicine again; along with the continuous discharge of liquid medicine from fluid-discharge tube 21, liquid medicine also can be from liquid inlet pipe 11 entering constantly, keep the atmospheric pressure in cavity 3, in case liquid medicine is defeated to be accomplished, because the wetting of liquid stopping film 5 forms the water film, gas can't pass liquid stopping film 5, realized preventing the possibility that gas gets into the human body, because gas can't pass, under the effect of atmospheric pressure, liquid then no longer continues the downstream, reached the effect of intercepting bubble, automatic exhaust, separation plastic granules, invariable liquid level and automatic liquid stopping.

The length of the upper connector 12 is greater than that of the liquid inlet pipe 11, the length of the lower connector 22 is greater than that of the liquid discharge pipe 21, the upper connector 12 can protect the liquid inlet pipe 11, and the lower connector 22 can protect the liquid discharge pipe 21.

The inner edges of the ports of the upper connector 12 and the lower connector 22 are designed to be chamfered, so that the hose of the infusion apparatus 7 can be conveniently inserted into the upper connector 12 and the lower connector 22.

The wall thickness of the liquid inlet pipe 11 is gradually reduced from bottom to top, and the wall thickness of the liquid discharge pipe 21 is gradually reduced from top to bottom, so that the liquid inlet pipe 11 and the liquid discharge pipe 21 are conveniently inserted into a hose of the infusion apparatus 7.

The head of exhaust hole 13 is equipped with anti-bacterial block 6, works as the utility model discloses a dropping funnel is when not using, and anti-bacterial block 6 can prevent effectively that the bacterium from exhausting hole 13 and getting into cavity 3.

The air filtering membrane 131 is made of PTFE (polytetrafluoroethylene) which has the characteristics of acid resistance, alkali resistance and various organic solvents resistance and is almost insoluble in all solvents, and the air filtering membrane 131 is made of the PTFE through special processes such as premixing, extrusion, calendaring, bidirectional stretching and the like, and has the characteristics of smooth surface, chemical substance resistance, air permeability, water impermeability, large air permeability, flame retardance, high temperature resistance, strong acid and alkali resistance, no toxicity and the like.

The openings 41 are uniformly distributed on the side wall of the cylindrical tank 4, and the liquid medicine can uniformly be distributed on the openings 41 on the side wall of each cylindrical tank 4 and flow out.

Referring to fig. 4, the utility model discloses a drip chamber and transfusion system thereof, during concrete operation, adjust the velocity of flow earlier, puncture into the liquid medicine bottle with this transfusion system 7 afterwards, wait for the exhaust completion of drip chamber and infusion hose after waiting for a period of time, after the liquid level of liquid medicine is invariable in the drip chamber, adjust the velocity of flow and make the liquid medicine stop, connect patient's vein with the syringe needle again, begin the infusion.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a dropping funnel, includes upper cover and lower cover, characterized by, the upper cover cup joints the installation and covers under and forms the cavity with the lower cover, the top of upper cover is equipped with the feed liquor pipe with the cavity intercommunication, be equipped with the upper connector as an organic whole structure with the upper cover around the feed liquor pipe, the exhaust hole has been seted up to the lateral wall of upper cover, be equipped with filtration membrane and gasket in the exhaust hole, the lower extreme of lower cover is equipped with the fluid-discharge tube with the cavity intercommunication, be equipped with the lower connector as an organic whole structure with the lower cover around the fluid-discharge tube, the lower extreme of feed liquor pipe and the upper end fixedly connected with cylinder groove of fluid-discharge tube, the opening has been seted up to the lateral wall of cylinder groove, still weld one deck liquid stopping film in the lower cover.

2. The drip chamber of claim 1, wherein the upper connector is longer than the inlet pipe and the lower connector is longer than the outlet pipe.

3. The drip chamber according to claim 1, wherein the inner edges of the ports of the upper and lower connectors are chamfered.

4. The drip chamber according to claim 1, wherein the wall thickness of the liquid inlet pipe is gradually reduced from bottom to top, and the wall thickness of the liquid outlet pipe is gradually reduced from top to bottom.

5. The drip chamber according to claim 1, wherein the head of said vent is provided with an anti-bacterial cap.

6. The drip chamber according to claim 1, wherein the air filter membrane is made of PTFE.

7. The drip chamber of claim 1 wherein said openings are uniformly distributed in the side walls of the cylindrical trough.

8. An infusion set characterised by comprising a drip chamber according to any of claims 1-7.